Data Collection Tools|Automated crawling of structured data on web pages

When data collection is always intercepted? Try this "face-swap" trick.

Brothers engaged in data collection should understand that the biggest headache is the IP is blocked. Hard work to write a crawler program, running not two days on the hiatus, the site anti-climbing mechanism with the installation of face recognition like, caught your IP on the black. This time you need to give the program to do a "face surgery" - proxy IP round switching identity, so that the site can not recognize you as the same person.

How did proxy IPs become a lifesaver for data collection?

Let's take a real-life example: an e-commerce platform is engaged in price monitoring, and 5,000 product pages have to be crawled every hour. If you use a fixed IP to do it, it will be blocked in less than half an hour. At this time with ipipgo's dynamic residential agent, just like the program prepared for the 1000 different face masks, every 10 visits will automatically change the face, the site can not distinguish between a real person or a machine.

Three hardcore advantages must be known:

1. Stealth mode activated: Highly anonymous agents hide their real IP so tightly that they don't even leave traces of it
2. supernatural arts of the seventy-two changes (idiom); skillful job of transforming oneself into a masterpieceSupport for automatic IP switching by number of requests and time intervals
3. Freedom of geographic switchingIf you want to capture data from Beijing, use Beijing IP, if you want to capture data from Shanghai, change Shanghai node.

Teach you to pick the right proxy IP

The market is full of proxy service providers, but remember these points so as not to step on the pit:
– Shelf life: short-acting agents for high-frequency switching, long-acting agents for continuous tasks
– responsiveness: less than 1.5 seconds of delay to qualify
– Protocol Support: HTTP/HTTPS/SOC5 should all be able to handle it
– after-sales service: 24-hour technical response can't be beat

This is a must.ipipgoTheir dynamic residential IP pool is updated with 2 million+ IPs every day, and each IP survival cycle is optimized by intelligent algorithms. Last time, a friend doing public opinion monitoring said that the collection success rate directly soared from 30% to 92% after using his service.

A practical guide to avoiding pitfalls (with code snippets)

Configuring proxies in Python with the requests library is super easy:

proxies = {
    'http': 'http://user:pass@gateway.ipipgo.com:9020',
    'https': 'http://user:pass@gateway.ipipgo.com:9020'
}
response = requests.get('destination URL', proxies=proxies)

Watch out for the pit.Don't use free proxies! Those IPs have long been blacklisted by various websites, so using this kind of proxy is tantamount to shooting yourself in the foot.

Frequently Asked Questions First Aid Kit

Q: Is it illegal to proxy IPs?

A: Regular data collection is perfectly legal, but remember to follow the website's robots agreement and don't touch sensitive data.

Q: How do I test if the proxy is working?

A: Visit http://ip.ipipgo.com/checkip to see the IP address and geographic location currently in use.

Q: How to solve the problem of IP blocking?

A: Immediately contact ipipgo customer service to change the IP segment, their family has a special wind control IP pool to deal with this situation.

Tell the truth.

The data collection thing, three points rely on technology and seven points rely on equipment. I've seen too many people spend weeks adjusting the parameters of the crawler, not as fast as a reliable proxy IP. ipipgo's recent new intelligent routing function is very interesting, can automatically select the fastest line, more than the manual switch to save a lot of heart. There is a price comparison website old brother said, access to their API, server costs directly cut in half, the input-output ratio is really fragrant.

Lastly, don't wait until your account is blocked before you remember to look for a proxy, and keep a good tool in advance. Now go to the official website of ipipgo registration can also receive a 3-day trial, try it yourself to know whether it is really able to play.